Telephone set



FIG. 1 is a left side elevational view of a telephone set showing my new design;

FIG. 2 is a rear elevation of the design;

FIG. 3 is a top plan view of the design;

FIG. 4 is a front elevation of the design;

FIG. 5 is a right side elevation of the design; and,

FIG. 6 is a perspective view of the design. 

The ornamental design for a telephone set, as shown. 